The updated trade paperback's new information completes the story of how the top secret plan of John and Robert Kennedy to stage a coup against Fidel Castro on December 1, 1963 -- with the help of Cuban Army Commander Juan Almeida -- was used by three powerful Mafia bosses to murder JFK.

Documented from the National Archives for the first time is Watergate burglar Bernard Barker's decades-long work for the Mafia, even as Barker aided the CIA with the coup plan. This let Barker sell out the coup plan to his mob bosses and help to assassinate JFK in a way that forced top US officials to withhold key information from the Warren Commission and the press, to prevent a nuclear confrontation with Russia.

This legacy of secrecy also allowed two men who confessed their roles in JFK's murder to be involved in the assassination of Dr. Martin Luther King, in 1968. The trade paperback also contains important new information about the FBI informant who obtained the JFK assassination confession of godfather Carlos Marcello, which the Bureau kept secret for twenty years.